Geoffrey Mutai Runs Fastest Marathon Ever

But, alas, there's a catch: Even though Mutai beat the previous record by 57 seconds, because there was a strong tailwind on a downhill course, Mutai's time won't be recognized. In fact, 2011 Boston Marathon runner-up and fellow-Kenyan Moses Mosop also surpassed the world record, finishing only four seconds behind Mutai.

On the woman's side, Caroline Kilel, also a Kenyan, had the best time, at 2 hours, 22 minutes, 36 seconds.

Although Mutai won't officially be recognized as a world record holder, he does get $50,000 for his world's best time and another $25,000 for the course record. This comes in addition to the $150,000 he received for the winning the race. So, not too bad.